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| Criterion |  UX Research User Interviews |  Operations Fishbone Diagram |  Decision Making Pareto Analysis |
|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. |
Complexitysame | Low | Low | Low |
Timedifferent | 30–60 min per interview | 30-60 min | 30-60 min |
Participantsdifferent | 1 participant per interview | 2-8 | 1-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Fishbone Diagram, Cause Categories, Investigation Backlog | Pareto Chart, Top Causes, Focus List |
Tagsno overlap | QualitativeResearchCustomerDiscovery | Root causeQualityOperations | PrioritizationQualityFocusRoot cause |
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